Australia's transport sector contributes 18% of the country's greenhouse gas emissions, with passenger transport accounting for 27% of that total. The Intergovernmental Panel on Climate Change (IPCC) recommends decarbonising vehicles by increasing the use of low-carbon fuels like electricity, hydrogen, and renewable biofuels. In response, governments and industry have taken steps towards vehicle decarbonisation by developing EV policies, investing in renewable energy and transportation sources, and expanding charging infrastructure. The GreenAVO project, conducted by the University of Queensland in collaboration with RMIT and AURIN, aims to assess progress towards achieving transport emission targets, such as achieving net zero emissions for Australia by 2050. The project uses real-world data to spatially model the maximum carbon emission potential with vehicle uptake across the country, including data collected from the Australian Government's Green Vehicle Guide. The demographic information highlights the importance of collective data in understanding the country's progress in transitioning towards transport decarbonisation, and identifies regions that are leading and lagging in reducing private vehicle emissions. The project provides open data and API access for progress tracking towards transport decarbonisation not only in Australia, but globally. This will enable the identification of areas that may need additional support to achieve emission targets. The project's outcomes will be essential in transitioning towards a more sustainable future, and it will also assist in reducing the transport sector's carbon footprint.